Katherine LaNasa leads the market at 65.5% implied probability as the defending winner for her work as charge nurse Dana Evans on HBO Max’s “The Pitt,” which secured 25 nominations overall and four supporting actress bids in the category. The medical drama’s critical dominance and voter familiarity give her an edge despite the risk of vote-splitting among co-stars Sepideh Moafi, Taylor Dearden, and Fiona Dourif. Karolina Wydra trails at 9.3% on the strength of her breakout turn in Apple TV+’s “Pluribus,” while Allison Janney, Julianne Nicholson, and others sit lower amid limited precursor momentum. Final voting concluded recently ahead of the September 14 ceremony, where historical patterns favor established frontrunners in split fields.